Sealing water testing tool for water pan

Abstract

The utility model discloses a sealing water testing tool for a water pan. The sealing water testing tool comprises a clamping assembly and a pressing assembly. The clamping assembly comprises a clamping frame and a sealing plate; the clamping frame is fixed to the outer wall of the smooth pipe, the sealing plate is connected with the clamping frame, and the sealing plate covers the open end face of the smooth pipe and presses the open end face of the smooth pipe. A water inlet communicated with a water pipe and an exhaust hole communicated with an exhaust pipe are formed in the sealing plate; the hold-down assembly comprises a test water receiving cup, a pressing plate and a hold-down frame; the outer wall of the upper end of the access pipe of the water receiving disc is hermetically connected with the inner wall of the test water receiving cup; the lower surface of the pressing plate is attached to the upper end face of the test water receiving cup, and the pressing plate is connected with the pressing and holding frame. The sealing device has the advantages that the clamping assembly and the pressing assembly are convenient to assemble and disassemble, sealing of the smooth pipe of the water pan and the end opening of the connecting-in pipe is rapidly completed, and compared with the prior art, complex follow-up treatment is not needed, and working efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to pipeline sealing technology, specifically to a sealing and testing fixture for a water receiving tray. Background Technology

[0002] In the field of slab continuous casting machine equipment, the vibration support frame, as a key component, is securely installed on the civil engineering foundation of the continuous casting machine through welding and high-strength bolt connections. The vibration support frame not only provides a precise and stable installation foundation for the vibration device, ensuring the quality of the cast billet, but also achieves rapid and precise positioning of the casting flow direction in the bending section of the continuous casting machine (the bending section is part of the continuous casting machine, this is existing technology) through a pre-set positioning U-shaped seat. Simultaneously, the insert-type pipe joint on its water receiving tray bracket can provide cooling water to the bending section (a steel pipe is installed at the upper end of the water receiving cup in the bending section for supplying cooling water for spraying the bending section). Figure 1 The diagram shows the structure of the water tray support, which includes a support, an inlet pipe, a transition pipe, and a smooth pipe. The inlet pipe is fixed to the support, and its upper end is inserted into the water cup of the curved section (supplying water to the curved section). The lower end of the inlet pipe is radially sealed within the transition pipe of the support using an O-ring. The flange of the transition pipe is pressed against the upper limit of the support by a pressure plate and fixed. The transition pipe and the smooth pipe are then sealed by welding. A sealing test of the water system of the water tray support is required, and the sealing locations need to be checked, including all pipe welds and rubber seals.

[0003] Currently, in the sealing test of water systems for water tray supports, existing technology typically involves sealing and welding the smooth pipe ends. After the water test, the steel pipes still need to be cut and ground. This method has the following problems: each stainless steel pipe needs to be cut after welding, and the manual cutting method results in uneven pipe ends. The heat generated during cutting can damage the chromium oxide (Cr2O3) protective film on the surface of the stainless steel pipe, causing blackening marks on the pipe ends, which then require passivation paste for subsequent treatment. When dealing with a large number of pipes, the process is complex and the workload is huge, leading to low work efficiency and increased costs and time. In addition, under some special product manufacturing requirements, such as when the client requires that the exposed length of the steel pipe not be changed and spot welding on the outer wall of the steel pipe is not allowed, the existing sealing test method is difficult to meet the requirements, and a new sealing test technology solution is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a sealing and testing fixture for a water receiving tray, thereby improving work efficiency.

[0005] The technical solution adopted in this utility model is: a sealing and testing tool for a water receiving tray, including a clamping component and a pressing component;

[0006] The clamping assembly is located at the open end of the smooth pipe in the water receiving tray; the clamping assembly includes a clamping frame and a sealing plate; the clamping frame is fixed to the outer wall of the smooth pipe, and the sealing plate is connected to the clamping frame, covering and pressing the open end face of the smooth pipe.

[0007] The sealing plate has an inlet for connecting to a water pipe and an exhaust port for connecting to an exhaust pipe.

[0008] The pressure holding assembly is located at the upper end of the inlet pipe of the water receiving tray; the pressure holding assembly includes a test water receiving cup, a pressure plate, and a pressure holding frame; the lower end of the test water receiving cup is open, and the upper end of the inlet pipe of the water receiving tray extends into the test water receiving cup from the lower end opening, and the outer wall of the upper end of the inlet pipe is sealed to the inner wall of the test water receiving cup; the lower surface of the pressure plate is in contact with the upper end surface of the test water receiving cup, the pressure plate is connected to the pressure holding frame, and the pressure holding frame is fixed on the support of the water receiving tray.

[0009] According to the above scheme, the clamping frame includes two clamping units, each clamping unit including a fixed plate, an arc-shaped clamping plate and a mounting plate; both sides of the arc-shaped clamping plate are provided on the fixed plate, the inner wall of the arc-shaped clamping plate is adapted to the outer wall of the smooth pipe, and the mounting plate is provided on the fixed plate; the fixed plates of the two clamping units are facing each other and connected, and the arc-shaped clamping plates of the two clamping units are spliced ​​to form a sleeve structure that hugs the outer wall of the smooth pipe; the mounting plates of the two clamping units are respectively connected to the sealing plate of the smooth pipe port of the water receiving tray.

[0010] According to the above scheme, the pressure holding frame is a portal frame, including two columns and a top beam connecting the two columns; the lower end of the columns is fixed on the bracket of the water receiving tray, the top beam is located above the test water receiving cup, and the pressure plate is horizontally fixed on the lower surface of the top beam.

[0011] According to the above scheme, the fixing plates of the two clamping units are connected by bolts, and the mounting plate and the sealing plate are connected by a first bolt.

[0012] According to the above scheme, a first flexible pad is provided on the inner wall of the arc-shaped clamping plate.

[0013] According to the above scheme, the first flexible pad is a silicone rubber pad.

[0014] According to the above scheme, a second flexible pad is provided between the sealing plate and the smooth pipe end of the water receiving tray.

[0015] According to the above scheme, the second flexible pad is a silicone rubber pad, and the second flexible pad completely covers the smooth pipe end face of the water receiving tray.

[0016] According to the above scheme, the lower end of the column is provided with a base plate, which is connected to the bracket of the water receiving tray by a second bolt. The inlet pipe and the test water receiving cup are both located within the portal frame.

[0017] According to the above scheme, the outer wall of the port of the access pipe is sealed to the inner wall of the test water cup by a sealing ring. The upper outer wall of the access pipe is provided with a boss, which forms a stepped surface with the outer wall of the access pipe, and the sealing ring is provided on the stepped surface.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model enables quick sealing of the smooth pipe and inlet pipe port of the water receiving tray through convenient installation and disassembly of the clamping and pressing components. Compared with the prior art, it eliminates the need for complex post-processing, effectively shortening the sealing test cycle. It is especially suitable for sealing tests of a large number of pipelines, significantly improving work efficiency. At the same time, it avoids the material loss and increased labor costs caused by cutting, grinding and passivation treatment in traditional methods, reducing the overall test cost and time cost.

[0020] 2. This utility model uses a flexible pad to avoid rigid contact between the tooling and the pipe, prevent damage to the protective film on the pipe surface, avoid problems such as blackening of the pipe opening, and ensure the surface quality and performance of the stainless steel pipe without the need for additional repair treatment.

[0021] 3. This utility model designs a non-welding sealing method, which can meet the special requirements of products that do not change the exposed length of the steel pipe and do not allow spot welding on the outer wall of the steel pipe, thus expanding the applicable scope of the sealing test. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the existing water tray support.

[0023] Figure 2 This is a schematic diagram of a single water pipe for a water tray support.

[0024] Figure 3 for Figure 2 Enlarged diagram of point A.

[0025] Figure 4 This is a structural schematic diagram of a specific embodiment of the present invention.

[0026] Figure 5 for Figure 4 A V-shaped schematic diagram of the connection pipe between the medium-pressure support component and the water receiving tray.

[0027] Figure 6 This is a schematic diagram of the overall structure of the clamping frame in this embodiment.

[0028] Figure 7 This is the front view of the clamping frame.

[0029] Figure 8 for Figure 7 BB cross-sectional view.

[0030] Figure 9 This is a schematic diagram showing the connection between the pressure holder and the pressure plate in this embodiment.

[0031] Figure 10 for Figure 9 Front view.

[0032] Figure 11 for Figure 9 The left view.

[0033] The components are as follows: 1. Bracket; 2. Inlet pipe; 3. Transition pipe; 4. Smooth pipe; 5. O-ring; 6. Cover plate; 7. Pressure plate; 8. Rubber plate; 9. Clamping frame; 9.1. Fixing plate; 9.2. Mounting plate; 9.3. Arc-shaped clamping plate; 10. First flexible pad; 11. Second flexible pad; 12. Sealing plate; 13. Test water cup; 14. Gate frame; 15. Pressure plate; 16. Base plate; 17. First bolt; 18. Second bolt; 19. Water inlet; 20. Vent. Detailed Implementation

[0034] To better understand this utility model, it will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 and Figure 2 The diagram shows a conventional universal water receiving tray, comprising a bracket 1, an inlet pipe 2, a transition pipe 3, and a smooth pipe 4. The inlet pipe 2 is fixed to the bracket 1. The upper end of the inlet pipe 2 is inserted into the water receiving cup of the curved section of the continuous casting machine to supply water to the curved section. The lower end of the inlet pipe 2 is radially sealed within the transition pipe 3 of the bracket 1 using an O-ring rubber ring 5. The flanged stop of the transition pipe 3 is pressed against the bracket 1 and fixed by a clamping plate 7 (the clamping plate 7 is externally fixed by a rubber plate 8 and a cover plate 6, such as...). Figure 3 As shown in the figure, the transition pipe 3 is connected to the smooth pipe 4; the smooth pipe 4 is a steel pipe.

[0036] Example

[0037] like Figure 4 and Figure 5 The sealing and testing fixture for a water receiving tray shown includes a clamping assembly and a pressing assembly;

[0038] The clamping assembly is located at the open end of the smooth pipe 4 in the water receiving tray; the clamping assembly includes a clamping frame 9 and a sealing plate 12;

[0039] The clamping frame 9 is fixed to the outer wall of the smooth tube 4; the sealing plate 12 is connected to the clamping frame 9, and the sealing plate 12 covers the open end face of the smooth tube 4 and presses it tightly.

[0040] The sealing plate 12 is provided with a water inlet 19 for connecting to an external water pipe and an exhaust hole 20 for connecting to an exhaust pipe.

[0041] The pressure holding assembly is located at the upper end of the inlet pipe 2 of the water receiving tray; the pressure holding assembly includes a test water receiving cup 13, a pressure plate 15, and a pressure holding frame; the lower end of the test water receiving cup 13 is open, and the upper end of the inlet pipe 2 of the water receiving tray extends into the test water receiving cup 13 from the lower end opening, and the outer wall of the upper end of the inlet pipe 2 is sealed to the inner wall of the test water receiving cup 13 through a sealing ring; the lower surface of the pressure plate 15 is in contact with the upper end surface of the test water receiving cup 13; the pressure plate 15 is connected to the pressure holding frame, and the pressure holding frame is fixed on the bracket 1 of the water receiving tray.

[0042] In this invention, the clamping assembly seals the open end of the smooth tube 4 of the water tray, and the pressing assembly radially seals the inlet of the water tray.

[0043] In this invention, the test water receiving cup 13 is exactly the same size as the water receiving cup on the bent section of the vibration support frame, and is compatible with the inlet pipe 2 of the water receiving tray. The outer wall of the inlet pipe 2 and the inner wall of the test water receiving cup 13 are sealed together by a sealing ring (a boss is provided on the upper outer wall of the inlet pipe 2, which forms a stepped surface with the outer wall of the inlet pipe 2, and the sealing ring is located on the stepped surface) to restore the sealing condition on site. During the water test, the upper end of the test water receiving cup 13 is subjected to water pressure and is pressed in the opposite direction by the pressure plate 15. The holding component plays a limiting role to prevent the test water receiving cup 13 from moving under the action of water pressure, thereby causing the sealing ring on the outer wall of the inlet pipe to slip out of the effective radial sealing surface, ultimately resulting in sealing failure and water leakage.

[0044] Preferably, such as Figures 6-8 As shown, the clamping frame 9 includes two clamping units, each clamping unit including a fixing plate 9.1, an arc-shaped clamping plate 9.3, and a mounting plate 9.2; both sides of the arc-shaped clamping plate 9.3 are provided on the fixing plate 9.1; the inner wall of the arc-shaped clamping plate 9.3 is adapted to the outer wall of the smooth tube 4; the mounting plate 9.2 is provided on the fixing plate 9.1;

[0045] The fixing plates 9.1 of the two clamping units face each other and are connected. The arc-shaped clamping plates 9.3 of the two clamping units are joined together to form a sleeve structure that grips the outer wall of the smooth pipe 4. The mounting plates 9.2 of the two clamping units are respectively connected to the sealing plates 12 at the ends of the smooth pipe 4 in the water receiving tray.

[0046] In this utility model, the fixing plates 9.1 of the two clamping units are connected by bolts, and the sleeve structure is used to fix the smooth tube 4; the mounting plate 9.2 and the sealing plate 12 are connected by the first bolt 17.

[0047] Preferably, a first flexible pad 10 is provided on the inner wall of the arc-shaped clamping plate 9.3.

[0048] In this utility model, the first flexible pad 10 is used as a pad to increase friction and protect the outer wall of the smooth tube 4. This can prevent the arc-shaped clamping plate 9.3 from rigidly contacting the smooth tube 4 of the water receiving tray and protect the outer wall of the clamped smooth tube 4 from damage by the clamping force.

[0049] Preferably, a second flexible pad 11 is provided between the sealing plate 12 and the smooth pipe 4 port of the water receiving tray.

[0050] In this invention, the second flexible pad 11 completely covers the open end face of the smooth tube 4 of the water receiving tray, and is used for elastic sealing of the open end of the smooth tube 4.

[0051] In this invention, both the first flexible pad 10 and the second flexible pad 11 are silicone rubber pads.

[0052] In this utility model, the clamping frame 9 serves as a fixed seat for the sealing plate 12 installed at the open end of the smooth tube 4. It is required that the clamping force be large enough to ensure that it can withstand the hydrostatic pressure of 1.5 MPa. When manufacturing the clamping frame 9, attention should be paid to ensuring that the force between the arc-shaped clamping plate 9.3 and the smooth tube 4 is uniform and appropriate, so as to avoid uneven force and excessive local stress that could deform the smooth tube 4.

[0053] Preferably, such as Figures 9-11 As shown, the pressure support frame is a portal frame 14, including two columns and a top beam connecting the two columns; the lower end of the columns is fixed on the bracket 1 of the water receiving tray; the top beam is located above the test water receiving cup 13, and the pressure plate 15 is horizontally fixed to the lower surface of the top beam.

[0054] In this invention, a base plate 16 is provided at the lower end of the column, and the base plate 16 is connected to the bracket 1 of the water receiving tray by a second bolt 18 (using the existing bolt holes on the bracket 1); the inlet pipe 2 and the test water receiving cup 13 are both located inside the portal frame 14. The installation of the column only needs to ensure that the sealing ring on the outer wall of the inlet pipe 2 seals against the inner wall of the test water receiving cup 13 under water pressure.

[0055] The method of using this utility model is as follows: First, the test water cup 13 is fitted onto the upper end of the inlet pipe 2 of the water receiving tray, and a sealing ring is set on the outer wall of the inlet pipe 2 for radial sealing, so that the inner wall of the water cup is sealed to the outer wall of the inlet pipe 2; then, the bottom plate 16 of the column of the portal frame 14 is connected to the bracket 1 of the water receiving tray by the second bolt 18, so that the lower surface of the pressure plate 15 on the portal frame 14 is in contact with the upper end surface of the test water cup 13; next, the inner wall of the arc-shaped clamping plate 9.3 of the two clamping units is provided with the first flexible pad 10 and placed on the outer wall of the smooth tube 4, and the fixing plate 9.1 of the two clamping units is connected by bolts, so that the arc-shaped clamping plate 9.3 clamps the smooth tube 4; then, the sealing plate 12 is provided with the first flexible pad 10. The flexible pad 11 covers the open end face of the smooth tube 4 and is fixedly connected to the mounting plate 9.2 of the clamping unit by the first bolt 17, so that the sealing plate 12 presses the port of the smooth tube 4. Finally, a water test is carried out. During the test, the water inlet 19 on the sealing plate 12 is connected to the water pump through a water pipe. The vent 20 is connected by a rigid vent pipe. The height of the vent pipe outlet is required to be higher than the height of the upper port of the inlet pipe 2. The water pump is turned on until water flows out of the vent pipe outlet. The vent pipe outlet is sealed and the smooth tube 4 is pressurized by the water pump. When the pressure value of the water pump reaches 1.5 MPa, the pressurization is stopped and the pressure is maintained for 15 minutes. After that, the sealing surfaces and welding points are checked for leakage. After passing the test, the pressure is slowly released.

[0056] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0057] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing and testing fixture for a water receiving tray, characterized in that, Includes clamping components and pressing components; The clamping assembly is located at the open end of the smooth pipe in the water receiving tray; the clamping assembly includes a clamping frame and a sealing plate; the clamping frame is fixed to the outer wall of the smooth pipe, and the sealing plate is connected to the clamping frame, covering and pressing the open end face of the smooth pipe. The sealing plate has an inlet for connecting to a water pipe and an exhaust port for connecting to an exhaust pipe. The pressure holding assembly is located at the upper end of the inlet pipe of the water receiving tray; the pressure holding assembly includes a test water receiving cup, a pressure plate, and a pressure holding frame; the lower end of the test water receiving cup is open, and the upper end of the inlet pipe of the water receiving tray extends into the test water receiving cup from the lower end opening, and the outer wall of the upper end of the inlet pipe is sealed to the inner wall of the test water receiving cup; the lower surface of the pressure plate is in contact with the upper end surface of the test water receiving cup, the pressure plate is connected to the pressure holding frame, and the pressure holding frame is fixed on the support of the water receiving tray.

2. The sealing and testing fixture for a water receiving tray according to claim 1, characterized in that, The clamping frame includes two clamping units, each clamping unit including a fixed plate, an arc-shaped clamping plate and a mounting plate; both sides of the arc-shaped clamping plate are provided on the fixed plate, the inner wall of the arc-shaped clamping plate is adapted to the outer wall of the smooth pipe, and the mounting plate is provided on the fixed plate; the fixed plates of the two clamping units are opposite to each other and connected, and the arc-shaped clamping plates of the two clamping units are spliced ​​to form a sleeve structure that hugs the outer wall of the smooth pipe; the mounting plates of the two clamping units are respectively connected to the sealing plate of the smooth pipe port of the water receiving tray.

3. The sealing and testing fixture for a water receiving tray according to claim 1, characterized in that, The pressure support frame is a portal frame, including two columns and a top beam connecting the two columns; the lower end of the columns is fixed on the support of the water receiving tray, the top beam is located above the test water receiving cup, and the pressure plate is horizontally fixed to the lower surface of the top beam.

4. The sealing and testing fixture for a water receiving tray according to claim 2, characterized in that, The fixing plates of the two clamping units are connected by bolts, and the mounting plate and the sealing plate are connected by a first bolt.

5. The sealing and testing fixture for a water receiving tray according to claim 2, characterized in that, A first flexible pad is provided on the inner wall of the arc-shaped clamping plate.

6. The sealing and testing fixture for a water receiving tray according to claim 5, characterized in that, The first flexible pad is a silicone rubber pad.

7. The sealing and testing fixture for a water receiving tray according to claim 2, characterized in that, A second flexible pad is provided between the sealing plate and the smooth pipe end of the water receiving tray.

8. The sealing and testing fixture for a water receiving tray according to claim 7, characterized in that, The second flexible pad is a silicone rubber pad, which completely covers the smooth pipe end face of the water receiving tray.

9. The sealing and testing fixture for a water receiving tray according to claim 3, characterized in that, The lower end of the column is provided with a base plate, which is connected to the bracket of the water receiving tray by a second bolt. The inlet pipe and the test water receiving cup are both located within the portal frame.

10. The sealing and testing fixture for a water receiving tray according to claim 1, characterized in that, The outer wall of the inlet pipe is sealed to the inner wall of the test water cup by a sealing ring. The upper outer wall of the inlet pipe is provided with a boss, which forms a stepped surface with the outer wall of the inlet pipe. The sealing ring is located on the stepped surface.

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